Elastic member



Patented Apr. 9, 1929.

UNITED STATES PATENT OFFICE.

...amm- NMi m E'UGEN SPEIDEL, 0F PFORZHEIM, GERMANY, ASSIGNOR TQ FR. SPEIDEL O13' PROVI DENCE, RHODE ISLAND, A FIRM COMPRISENG FREDERIC SPEIDEL AND EUGEN SlEDEL, BOTH 0F PFORZHEIM, GERMANY.

ELASTIC MEMBER.

iippiicaiioa ined Juiy 27,

This invention relates to an improved construction of elastic member to be used for any purpose for which it is adapted being more igiarticularly designed for use as an elastic band for entendible bracelets, gartersx neck bands and the like; and the object of this invention is to construct suoli an elastic member of more than two lengths of lielically coiled members arranged side by side with their coils interineshing along their length and to position a core in the coils to retain them in intermeshing relation.

A further object of the invention is to form these helical coils with a right and a left hand wind, a length of one Wind being positioned between two lengths of the opposite wind and the coils of adjacent lengths interineshing one with the other and locked against lateral displacement. i

A still further obl'ect of the invention is in tipping the coils so that each will lie `in a plane at an angle to its axis disposing `the coils to overlie each other in the manner of fish scales.

llVith these and other objects in View, the invention `consists of certain novel features of construction, as will be `more fully de scribed, and particularly pointed out in the appended claims.

ln the accompanying drawings:

Figure l is a side elevation illustrating my improved elastic ineinberin bracelet forni. with its ends attached to opposite sides of a wrist watch.

Figure 2 is a short length of helical coil of the left hand wind.

Figure 8 is a helical coil of the right han d wind.

`lE`i ure 4 is another helical coil of the left hand wind.

Figure 5 shows the helical coil with right hand wind having helical coils of the left hand wind intermeshing with the `opposite edges thereof.

Figure 6 is an end view showing the edges of the two left hand coils as intermeshing with the opposite edges of the right hand coil.

Figure 7 is an enlarged view showing the coils in section with chain cores 0r members extending through the intermeshing portions of the coils to prevent lateral separation and also showing a` central core through the in termediate coil to prevent the side coils from 1927.` serial No. 208,891.

being pressed inwardly toward each other. Figure 8Hisan end view of the coils as shown in l1* igiii'e i tipped at an angle to overlie cach other. l

Figure 9 is a side elevation showing the coils having been tipped to overlieieach other in the manner of fish scales.

Fig. 10 is a detail view showing the manner of securing the coils to the attaching sleeve.

Itis found of advantage to construct elastic members of this character with more than two helical coils which may be used for the broader type of extendible members and which are designed more particularly to be made into bracelets, garters, neck bands and the like; and it is found of advantage to form such a band or member with sutlicient tension when used as a bracelet to be readily extended sufficiently to be passed over the handof the wearer and at the same time forni such a bracelet which ishandsome and attractive `in appearance; also to provide a bracelet which is extremely simple and inexpensive to construct, the saine being made by simply winding a `plurality of helical coils, preferably more than two ofright and left hand wind, and lay these coils side by side and cause their coils to be interiiieshed one with the other along their length; also to position suitable cores or locking n'iembers to ,entend throuczjh the intcrineshiiig portions of the coils to `hold thcin against lateral` displaccment and also iu sonic instan :es 'to entend a core through the intermediate coil to prevent the two side coils from being pressed inwardly toward each other; also it is 'found of advantage to provide a core of such a Vconstruction that it will limit the entendibility of the elastic member and so prevent the same VVfrom being extended excessively and strained.;

also it is found of advantage to tip the coils at an angle to their longitudinal axes causing them to overlie cac-h other in the n'unuer or fish scales; and the following is aitletailed description ef one means by which these advantageous results may be accomplished.

With reference to the drawings, 10 designates a short length of a helical wire coil of a left hand wind which may be made of any ,desired length and preferably of resilient wire of the desired gauge and wound into coils or convolutions of the desired diameter.

11 designates a similar coil of a right hand wind and 12 another similar coil and of a left hand wind. These different lengths vof coils may be formed of different colored wires if desired to render more handsome and attractive theV appearance of the bracelet or device which may be made therefrom.

In assembling these `coils 10, 11 and 12, they are slightly elongated and the two coils ofthe left hand wire are forced from opposite sides to intermesli with opposite edges of the intermediate right hand coil 11.

In order to prevent these coils from being Y Idisconnected laterally from each other I may .these coil members.

position some sort of a core or locking inember between the interii'ieshing portions of In some insa 'ices I .prefer to employ a chain .13 w ch extends through the intersecting portions of these coils to lockt-hem together also in some instances to prevent the coils from being pressed inwardly toward each other I may employ a central core 14. TheseV cores may be of any suitable material preferably to allow the elastic Vmember to 'flex and also to extend in a direction of its length. In most instances I prefer to secure one end of these chai cores 13 to the end ofthe coil or to a sleeve 15 by means of a pin 16, which arrangement etl'ectually protects the device against being ruptured by undue extension.

- It is also found of particular advantage in .order to enhance the appearance of the plu'- rality of coils as a bracelet or ornamental member to flatten these coils by a set of rolls or dies and so exert pressure upon them suiifciently to tip them over at an angle, as best illustrated in'Figure 9 and in some instances to flatten an ornament the top and bottom edges of the wire and the coils and at the same time cause them topresent a softer feel to the arm of. the wearer.

The yforegoing description is directed soles Yly towards the construction illustratedI` but I Ydesire it to be understood that I reserve'tlie y privilege of resorting to all the mechanical than two lengths of right and left hand helical coils of wire set side by side, the alternate coils being of corresponding wind and intermeshing with opposite sides of a coil of an opposite wind.

3. An elastic member comprising more than two lengths of right and left hand helical coils of wiie set side by side, the altery nate coils being of corresponding wind and intel-meshing with opposite sides of a coil of an opposite wind, and locking cores in said coils to maintain themy in intermeshing relation.

4. In an elastic member lnore than two lengths of helically wound coils arranged side by side with the coils of adjacent length intermeshed one with the other and cores extending through tlie intermeshcd portion of the adjacent coils to prevent a separation thereof.

5. In an elastic member, a plurality of lengths of left and right hand helically wound coils arranged with the length of one wind spaced apart by a length of the opposite wind with the coils of adjacent lengths intermeshed one with the other and cores extending through the intcrmeshed portion of the adjacent coils to prevent a separation thereof.

6. An elastic member con'iprising a plurality of lengths of right and left hand heli cally wound coils lying side by side, a length of one wind being positioned intermediate two lengths of the opposite wind, the coils of adjacent length intermeshing one with the other and said coils being set at an angle to the axes to each overlie a portion of another.

7. An elastic member comprising a plurality of lengths of right and left hand helically wound coils lying side by side, a length of one wind being positioned intermediate two lengths of the opposite wind, the coils of adjacent length intel-meshing one with the other, and core members extending through the intermeshing portions of said coils to prevent them 'l'rom separating.

8. An elastic member comprising a plurality of lengths of right and left hand helically wound coils lying side by side, a length of one wind being positioned .intermediate two lengths of the opposite wind, the coils` of. adjacent length intermeshing one with the other, and a core of chain extending through said members and fastened at its ends to limit the extension of said members.

In testimony whereof I afiix my signature.

EUGEN SPEIDEL. 

